import { asyncRouterMap, constantRouterMap } from '@/router'
import api from '@/api/index.js'

/** 
 * 通过meta.role判断是否与当前用户权限匹配
 * @param roles
 * @param route
 */
function hasPermission(roles, route) {
    if (route.meta && route.meta.roles) {
        return roles.some(role => route.meta.roles.indexOf(role) >= 0)
    } else {
        return true
    }
}

/**
 * 递归过滤异步路由表，返回符合用户角色权限的路由表
 * @param asyncRouterMap 
 * @param roles
 */
function filterAsyncRouter(asyncRouterMap, roles) {
    const accessedRouters = asyncRouterMap.filter(route => {
        if (1 == 1) {
            if (route.children && route.children.length) {
                route.children = filterAsyncRouter(route.children, roles)
            }
            return true
        }
        return false
    })
    return accessedRouters
}

const permission = {
    state: {
        routers: constantRouterMap,
        addRouters: [],
        menus: [],
        sidebarReady: false
    },
    mutations: {
        SET_ROUTERS: (state, routers) => {
            state.addRouters = routers
            state.routers = constantRouterMap.concat(routers)
        },
        SET_MENUS: (state, menu) => {

            state.menus = menu
        },
        SET_SIDEBAR: (state, bol) => {

            state.sidebarReady = bol
        }
    },
    actions: {
        GenerateRoutes({ dispatch, commit }, data) {
            commit('SET_SIDEBAR', true);
            api.get("/api/Menu/getCurrentMenuAll", null).then(rsp => {
                if (rsp != false) {
                    commit('SET_MENUS', rsp.data)
                }
            });
            return new Promise(resolve => {
                const { roles } = data
                let accessedRouters
                if (1 == 1) {
                    accessedRouters = asyncRouterMap
                } else {
                    accessedRouters = filterAsyncRouter(asyncRouterMap, roles)
                }
                commit('SET_ROUTERS', accessedRouters)
                resolve()
            });
        }
    }
}

export default permission